| 胞外ATP对泡桐花粉萌发和花粉管伸长的效应及其与H2D2的关系 |
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| 引用本文： | 张媛华,张韶杰,李瑾. 胞外ATP对泡桐花粉萌发和花粉管伸长的效应及其与H2D2的关系[J]. 安徽农业科学, 2011, 39(5): 2572-2573,2598 |
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| 作者姓名： | 张媛华 张韶杰 李瑾 |
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| 作者单位： | 陕西师范大学生命科学学院;渭南师范学院环境与生命科学系; |
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| 基金项目： | 陕西省教育厅自然科学专项项目(2010Jk536); 渭南师范学院科研项目(11YKZ005) |
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| 摘 要： | [目的]研究胞外ATP（eATP）对泡桐（Paulownia tomaentosa Steud.）花粉萌发和花粉管伸长的效应及其与过氧化氢（H2O2）的关系。[方法]eATP浓度分别为0、0.2、0.4、0.6 mmol/L,处理时间分别为1、2、3 h;H2O2浓度分别为0、1、2、3、4、5 mmol/L,处理时间分别为1、2、3 h。[结果]eATP和H2O2均显著抑制花粉萌发和花粉管伸长,且表现出明显的浓度和时间依赖效应。过氧化氢清除剂（ASA）和过氧化氢酶（CAT）能够部分阻止eATP对花粉萌发和花粉管伸长的抑制作用,显示eATP抑制花粉萌发和花粉管伸长与其诱导H2O2产生有关。[结论]eATP对花粉萌发和花粉管伸长的效应能够通过诱导H2O2产生而实现。
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| 关 键 词： | 胞外ATP 泡桐 花粉萌发 花粉管伸长 过氧化氢 |
The Effects of eATP and Its Relatoinship with H_2O_2 in Pollen Germination and Tube Growth of P. tomentosa Steud. |
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| ZHANG Yuan-hua et al. The Effects of eATP and Its Relatoinship with H_2O_2 in Pollen Germination and Tube Growth of P. tomentosa Steud.[J]. Journal of Anhui Agricultural Sciences, 2011, 39(5): 2572-2573,2598 |
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| Authors: | ZHANG Yuan-hua et al |
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| Affiliation: | ZHANG Yuan-hua et al (College of Life Sciences,Shaanxi Normal University,Xi'an,Shaanxi 710062) |
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| Abstract: | [Objective] The aim was to study the effects eATP and its relationship with H2O2 in pollen germination and tube growth of P.tomentosa Steud..[Method] The eATP with concentration of 0,0.2,0.4,0.6 mmol/L and The H2O2 with concentration of 0,1,2,3,4,5 mmol/L were booth used to treat the P.tomaentosa Steud.pollen 1,2,3 h respectively.[Result] The results showed that both eATP and H2O2 inhibited pollen germination and tube growth in a dose-dependence manner.Both ASA,an important reducing substrate for H2O2 remov... |
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| Keywords: | Extracellular ATP(eATP) P.tomentosa Steud. Pollen germination Pollen tube growth H2O2 |
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